Lighting-fixture.



H. NORTHWOOD.

LIGHTING FIXTURE.

APPLICATION men JUNE 25. 1917. v

LQMAQEQ, Patented; Nov. 20, 1917-.

lV/T/VESSES lJVlE/VTOR.

1 an earn amen HARRY uon'rnwoon, or WHEELING, wnsr VIRGINIA.

LIGHTING-FIXTURE.

To all whom it may concern:

Be it known that I, .HARRY NORTHWOOD, a citizen of the United States ofAmerica, and resident of- Wheeling, county. of Ohio, and State of WestVirginia, have invented certain new and useful Improvements inLighting-Fixtures, of which thefollowing is a specification. i

This invention relates broadly to lighting fixtures, and morespecifically to an electric lighting unit of that type which embodies asuspended light-shieldingbowl,

The' primary object of the invent on isto provide an electric lightfixture of the semiindirect type. wherein the light-diffusing bowl isshieldedin such mannerthat the col lection of dust therein is largelyprevented.

A further object is to provide, in a device of the character mentioned,a mouthclosing shield for thelight-difi'using bowl which is of such formand character that it not only does not detract from the appearance ofthe fixture, but also does not appreciably impair the lightingefficiency of such devices. l v

A still further object of the invention is to provide alighting devicewhich includes a light-diffusing bowl and a dust shield adapted to besupported by or suspended from a socket cover mounted upon an ordinarysuspended' electric-light socket, and which involves a simpleconstructionadapted to be readily installed by unskilled persons, and asreadily removed when occasion requires. 4

lVith these and other objects in view, the invention resides in thefeatures 'of construction, arrangement of parts and combinations ofelements which will hereinafter be fully described, reference being hadto the accompanying drawing, the single figure of which illustrates acentral vertical section of the invention.

In said drawing, 1 indicates a light-inclosing diffusing bowl, and 2 ashade or re flector, said parts being of a common or any appropriateform. Said parts are supported by a socket-cover which is preferably ofthe character disclosed in Patent No. 1,225,049, issued to me on the 8thday of May, 1917, but it will be understood that I do not confine myselfto the use of the socket cover of aid patent. Said preferred form ofsocket-cover illustrated in the drawings consists of a cylindrical shellor casing 3 and a telescoping dome-member l, said ployed for supportingthe bowl.

connection it will be noted that the shield .is supported,bythebowlrather-than by the socket-cover. I

Specificationof Letters Patent. Patefl-fiedl NO 2Q, 1911;? Applicationfiled June-25, 1917. Serial No. 176,655.

casing having an inturned flange 5 at its upper end for resting upon ashoulder 6 formed on saiddomeanember, and having a lower flared end orskirt 7 whereby is formed an annular shoulder 8. Said socket cover isdesigned for seating upon a lightsocket in embracing relation to asocket susof-translucent glass. A ring-like apron 10 of metal looselyencircles the casing and has its lower edge resting upon the top ofsaidreflector for concealing the neck portion of the latter, thereby toenhance the appearance of the fixture.

Interposed between the reflector 2 and the bowl 1 is a plain transparentglass shield 11 of widely flared belLlike form, the

lower edge of which is designed to rest upon and embrace the openupperend, or mouth, of said bowl for excluding dust from the latter. Saidshield has its upper portion or neck loosely embracing the skirt 7 i ofthe casing Sso that it is vertically movable with respect to thelatterto compensate for slight variations in the length of the chains 9 em- Inthis The dome-member 4 ispreferably of the split form disclosed in mysaid Patent No. 1,225,0-19, havlng a radialinclsion in. one 1 sidethereof for facilitating introduction of the socket-suspension element.

In mounting the fixture, the apron 10, reflector 2 and shield 11 areseparately and in the order named slipped upward over the light socketto an out-ofthe-way position on the suspension cord above said socket.Then the casing 3 to which the bowl 1 has previously been attached bymeans of the chains 9 is in like manner slipped upward over the socketto a position on the cord a suitable distance above said socket. Thedome-member at is then applied in encircling relation to the cord at apoint between the socket and the parts previously applied, as aforesaid,after which said dome-member is thrust upward or telescoped within theaverage person.

casing to a position wherein its sho ulder G seats against theflange 5ofsaid casing. The casing, dome-member and suspended bowl are thenlowered to permit said domemember to seat upon the light-socket, and

the lamp is then introduced in the latter. And, finally, the shield,reflector and apron are successively loweredto their respective.

seating positions.

It will be apparent from the foregoing that the fixture involves aminimum number of compactly arranged parts of relatively simple andinexpensive construction which may be readily lnstalled in assembledrela- 'tion and dismounted without the exercise of other skill thanjthatpossessed by the While I prefer to employ a reflector as a Qpartbfthe fixture, it will be obvious that the reflector might be omitted ifdesired What is claimed is -1. In a li'ghtingfixture, the combinationwith a socket cover, of a diffusingbowl, means suspending said bowlctromsaid cover, and a glass shield fitted in vertically adjustableembracingrelation to said cover above the upper end ofsaid suspending means andinclosing the latter, said shield being supported by said bowl andclosing the mouth of the same. i

2. In a lighting fixture the combination with a shouldered socket cover,of a reflector supported by the shoulder of said cover, a diflusingbowl, chains suspending said bowl from said cover, and a'glass shieldinterposed between said reflector'and said bowl, said shield embracingsaid cover belowsaid shoulder and having its'lower edge disposed inclosing relation to the mouth of said 3. In a lighting fixture, thecombination with a socket cover, of a d'iflusing'bowl, chains suspendingsa1dbowl fromsaid cover,

and a glass'shield embracing said cover and resting upon said bowl inclosing relation to the mouth of the latter, said shield be- Gopies ofthis patent may be obtained for 'ture in presence of two nesses.

ing vertically adjustable to compensate for slightly varying lengths ofbowl-supporting chains.

l. Adighting fixture comprising a socket cover having a flared lowerendwhereby 1s formed an annular external 7 shoulder, a

light-dilfuSing bowl suspended from said flareden-d, a reflector havinga neck portion embracing said cover andseated upon said shoulder, saidreflector be ng supported in overhang ng relatlon to said bowl, and aglassshield interposed between said reflector-and saidbowl,.saidshieldbemg disposed 1n embraclng relation tosai'd flared endof the cover and-having its'loweredge posi- -tioned in mouth-closingrelation to said shoulder, sa'id reflector being supported inoverhanging relationjto said bowl, and a glass shleldinterposed betweensaid reflector and sa d bowl, Sitld shield embracing and beingvertically movab le with" respectto said cover and resting upon saidbowl'in mouthclosing relation to'thelatte-r.

BIA lighting fixture comprisinga socket cover, a reflector embracing and"supported by said cover, a light-diffusing bowl, means suspending saidbowl from said cover, and

a bell-like glass shield encircling said cover In testimony whereof, Iaflix'my signasubscribing wit- HARRY Nonrnwoon fitnesses: y

E. 'DUNLAP, W. Knnrnn.

fivecentseach, byladdressing the Commissioner of Patents, Washington,1),.0. r

below said reflector and inclosing said suspendmg means, =sa1d shleldbeing disposed ln closing relation to the mouth of said bowl."

